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[81.185.170.199]) by smtp.gmail.com with ESMTPSA id v123sm3297756wme.7.2020.10.20.10.43.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2020 10:43:04 -0700 (PDT) From: Fabien Parent To: linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: matthias.bgg@gmail.com, robh+dt@kernel.org, daniel@ffwll.ch, airlied@linux.ie, p.zabel@pengutronix.de, chunkuang.hu@kernel.org, Fabien Parent Subject: [PATCH 5/8] drm/mediatek: dsi: add support for mipi26m clk Date: Tue, 20 Oct 2020 19:42:50 +0200 Message-Id: <20201020174253.3757771-6-fparent@baylibre.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201020174253.3757771-1-fparent@baylibre.com> References: <20201020174253.3757771-1-fparent@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org MT8167 SoC needs an additional clock to be enabled. Add support for the mipi26m clk. Signed-off-by: Fabien Parent --- drivers/gpu/drm/mediatek/mtk_dsi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 461643c05689..08786734df8e 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -193,6 +193,7 @@ struct mtk_dsi { struct clk *engine_clk; struct clk *digital_clk; struct clk *hs_clk; + struct clk *mipi26m; u32 data_rate; @@ -653,6 +654,12 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) goto err_disable_engine_clk; } + ret = clk_prepare_enable(dsi->mipi26m); + if (ret < 0) { + dev_err(dev, "Failed to enable mipi26m clock: %d\n", ret); + goto err_phy_power_off; + } + mtk_dsi_enable(dsi); if (dsi->driver_data->has_shadow_ctl) @@ -710,6 +717,7 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi) clk_disable_unprepare(dsi->engine_clk); clk_disable_unprepare(dsi->digital_clk); + clk_disable_unprepare(dsi->mipi26m); phy_power_off(dsi->phy); } @@ -1086,6 +1094,8 @@ static int mtk_dsi_probe(struct platform_device *pdev) goto err_unregister_host; } + dsi->mipi26m = devm_clk_get_optional(dev, "mipi26m"); + dsi->hs_clk = devm_clk_get(dev, "hs"); if (IS_ERR(dsi->hs_clk)) { ret = PTR_ERR(dsi->hs_clk); -- 2.28.0